Log barker or peeler



Oct. 1f1935. R. o. BRITTON LOG BAKKER OR PEELER Filed April 25; 1934 6Sheets-Sheet l Inventor E. 0. [7V/'#00 v By'm, Y `flllorncyv y Octf 1,1935. R. o. BRITTON 2,015,069

LOG BARKER 0R PEELER Filed April 23, l934 v6 Sheets-Sheet 2 w me V- Invenor Bymmz.

Oct. 1935. l R o. BRITTQN 2,016,069

LOG BARKER OR PEELER Filed Aprilvzs, 1934 e sheets-Sheet 5 ooo QDD

OAAAAAAAA VVvqyVVUv if j!) hl s l(l 0 Inventor 55 Y Y l `,llllomey l,1935. R Q BRU-TON 2,016,069

LOG BAKKER OR PEELER Filed April 25, 1954 6 Sheets-Sheet 4 f. @im

:wi Q

Oct. 1,1935. R. o. BRITTON 2,016,069

LOG BARKER OR PEELER Filed April 23, 1934 6 Sheets-Sheet 5 Oct.f l,1935. R 0. BRITTQN l2,016,069

LOG BARKER OR PEELER Filed April 23, 1954 6 Sheets-Sheet 6 lnvenlor f1Home y Patented Oct. 1, 1935 UNTE STE LOG BAKKER OR PEELER Rex OtisBritton,

Application April 23,

3 Claims.

This invention relates to a log barker o-r peeler, the general object ofthe invention being to provide means for rotating the log, a carriagemoving parallel to the log and cutters carried by the carriage forpeeling or removing the bark from the log, with means for projecting andretracting the cutters.

This invention also consists in certain other features of constructionand in the combina.-

lO tion and arrangement of the several parts, to be hereinafter fullydescribed, illustrated in the accompanying drawings and specicallypointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings where:-

n like characters denote like or corresponding parts throughout theseveral views, and in which:-

Figure l is a plan view of the apparatus.

Figure 2 is an end View thereof, showing the log in position. r

Figure 3 is a side View with the log in position.

Figure 4 is a top plan View with the jacks for the log turning means insection.

Figure 5 is a view partly in section of one of the log turningassemblies.

Figure 6 is a top plan View of the upper portion of Figure 5.

Figure 7 is an elevation of one of the log turning means, with the jackomitted.

Figure 8 is a View of one of the. drums which carries the cuttingknives.

Figure 9 is a transverse sectional view through the drum, with parts inend view.

In these drawings, the numeral. I indicates a base or foundation fromwhich rises the supports 2 which carry the bearing members 3 for theshafts of the spiked rollers 4 which have concave surfaces for engagingportions of a log A. Sprockets 5 are connected to the ends of the shaftsand endless chains 6 pass over these sprockets and one of the end shaftsis connected by the sprockets and chains with the shaft 8 driven from amotor 9 by the gears I 0.

A log to be peeled or barked is moved longitudinally in the direction ofthe arrow shown in Figure 1, by the ordinary bull chain in common use insaw mills, or by other means, and as the log comes into Contact with thespiked rollers 4, it `50 is moved longitudinally by said rollers untilit reaches the desired position, when the motor 9 is stopped.

Upright supports I I are carried by the base or foundation between therollers 4 and carry the vertically arranged jacks I2 which may be op-Port Angeles, Wash.

1934, Serial No. 722,037

erated hydraulically or mechanically, with the heads of these jacksadapted to engage an under part of the log so as to raise the log clearof the spiked rollers 4.

Two rows of jacks I3 converge upwardly from 5 the base, one row beingarranged on one side of the rollers 4 and jacks E2 and the other row onthe opposite side and these jacks I3 are provided with the bracing meansI4. Each of the jacks I3 has a yoke I5 at the upper end of its movable10 member, the upper ends of the limbs of which are provided withbearings for the shaft I6 of a spiked roller I'l and said shaft it,adjacent the ends of the roller I l, carries the sprockets i8 over whichchains i3 pass, said chains also passing 15 over sprockets on `stubshafts 20 supported in bearings 2I on a platform 22 carried by the bightof the yoke.

Trains of gearing 23 connect the stub shafts with the shaft of a motor24 supported by hangers 20 from the platform 22. Thus by raising thejacks I3, the spiked rollers I'I will engage the log and then bystarting up the motors 24, the rollers Il will be rotated and thusrevolve the log.

Supports 25 carry the track rails 26 engaged 25 by the rollers 2l of acarriage 28 and said carriage has the nut members 29 connected therewiththrough which screw shafts 30 pass, these shafts being connected by thesprockets and chains, shown generally at 3|, to a shaft 32 which 30 isdriven by the gears 33 from a motor 34 supported on one of the members25. Thus when this motor 34 is in operation, the screw shafts will berotated and said shafts will move the carriage parallel to the log.

Said carriage carries a plurality of rack bars 35 which are slidablysupported by the rollerequipped hangers 36 carried by the carriage.These hangers may be adjustably connected with the carriage so as tochange the angle at which 40 they hold the rack bars. These rack barsare projected and retracted by means of the motors 3l carried by thecarriage and rotating pinions 38, which engage the teeth of the rackbars, through means of the gearing shown generally at 39. The rack bars,excepting the end ones, are arranged in pairs and each pair is retractedand projected by a single motor, as shown in Figure l, and each pair ofrack bars carries a support 4D provided with journals for a knifecarrying'drum 4I and each support also carries a motor 42 for rotatingthe drum.

As shown in Figures 8 and 9, each drum is formed with the slots 43through which project the knives 44 which are suitably supported by the55 drum. Within the drum is arranged a set of spirally arranged members45 which deflect the bark and other material out from the log by theknives to one end of the drum.

As shown in Figure 8, the drum is preferably formed with two sets ofslots 43 for the knives, with the slots staggered, as shown in Figure 8.A single rack bar and a motor for operating the same, is arranged ateach end of the carriage and each of these rack bars carries avertically arranged frame it in which is rotatably arranged a verticalshaft f3? driven by a motor 48 and carrying a vertically arrangedcutting drum 49 which has its circumference of concave shape, as shownin Figure 2. These vertically arranged cutting drums are adapted toengage the ends of the log to remove the bark therefrom.

As will be seen, the cutting drum can be retracted and projectedindependently of each other so that the knives will properly engagethose portions of the log opposite the drums and this arrangementpermits an uneven taper or bow in the log to be operated on by thecutting drums, for where a drum is to operate on a concavity in the log,this drum can be projected to a greater extent than the other drum andby moving the carriage, the entire log can be operated upon. The drumsare rotated in an opposite direction to the turning motion of the logand I provide a shield 5U at that side of the carriage adjacent the logto keep the bark and other material cut from the log by the knives awayfrom the rails and rollers 2l.

After the entire log has been barked or peeled,

theV log is expelled by the thrust of the kickers 5| operated by thejacks 52.

Y Thus it will be seen that I have provided oomparatively simple meansfor removing bark from logs and with the minimum amount of manual labor.This apparatus will handle logs from approximately 12 inches in diameterto l0 feet in diameter and I prefer to provide means whereby all of themotors and jacks can be operated from a central point.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent. 5

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall Within the scope of the appended claims.

What is claimed isz- Y l. In a log peeling apparatus, a plurality ofdrums arranged longitudinally of the log and carrying knives for peelinga log, means for rotating the drums, means for moving the drums 15toward and away from'the log independently of each other, each drumhaving elongated longitudinally extending slots therein in which theknives are mounted and through which the out material enters the drumand spirally arranged members in each drum for deflecting the materialcut by the knives toward one end of the drum.

2. In a log turning machine, two rows of upwardly converging jacks, aplatform carried by each jack, a yoke at the upper end of each jack, ahorizontally arranged spiked roller `parallel to the log and carried byeach yoke andmeans on each platform for rotating its respective roller.

3. In a log peeling apparatus, a carriage, means 80 for moving thecarriage parallel to a log, a drum carried by the carriage and arrangedlongitudinally of the log, said drum having elongated longitudinallyextending slots therein, knives carried by the drum and passing throughthe slots,

means for rotating the drum, means for moving the drum toward and awayfrom the log, the .material cut by the knives entering the drum throughthe slots and means in the drum for moving the material from the drum.

REX o'rrs BRITTON.

